下列函数中哪个在(0,+∞)内无界?()
A.y=e-x2
B.y=1/(1+x2)
C.y=sinx
D.y=xsinx
正确答案是D
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/947852.html
上一篇:The customer insisted on getting ( ) of the discount than what she had been offered.
The customer insisted on getting ( ) of the discount than what she had been offered.
下一篇:设A为正交矩阵,证明:|A|=1或|A|=-1.